We measured the C1 / C2 error rate on the recorded discs we burned at the various supported writing speeds. The software we used is the latest PleXTools Professional and in particular the built-in Q-Check utility. The reader was the Plextor PX-716A.

- BenQ 80min 52X @ 48X

- Intenso 80min 52X @ 40X

- MMore 80min 52X @ 48X

- SKC 80min 52X @ 48X

- Traxdata 80min 40X @ 48X

- TY 80min 48X @ 48X

- Summary

All burned CDs reported good quality as can be seen in the above graph. With the exception of the Intenso disc, where some C2 errors were reported, we can safely say that the Philips 1648 is a quality CD burner. For further investigation of the CD burning quality of this drive, we will put the burned media under the scope using the CDX quality checker.